Top Mailchimp Alternatives & Competitors in 2026

What changed in Mailchimp's free plan?

It shrank - Mailchimp's free plan now covers 250 contacts and 500 sends a month, down from 500 contacts and 1,000 sends. Mailchimp's emails to customers put the change at 17 February 2026, as reported by pricing trackers. Mailchimp's own pricing page confirms the new limits but gives no date. Automation flows are not on the free plan at all.

Why do small businesses leave Mailchimp?

Cost first, then limits.

• You pay for contacts you cannot email: unsubscribes stay in your total until you archive them. User reviews repeatedly name cost "as the number of contacts increases.
• The free plan got smaller in 2026: 250 contacts is a starting list, not a business list.
• Automation is gated: the entry paid plan limits flows, and full multi-step automation sits on higher tiers.
• Support on lower tiers: a steady theme in user reviews, and the reason Constant Contact is on this list.

Which Mailchimp alternative fits your list?

Match the problem, not the feature count. Read the table as: what is pushing you off Mailchimp, the Sonary-reviewed switch, and what you give up.

Brevo: the cheapest way to keep a large list?

Yes, Brevo bills on how many emails you send, not how many contacts you store. The free plan allows 300 emails a day and up to 100,000 contacts (Brevo help center). A 4,000-person list you email twice a month costs you on sends, not on size. Sonary's review calls it an affordable all-in-one for email, SMS, and CRM, and flags Brevo branding on free emails.

Benchmark Email and Constant Contact: free plan vs real support

Benchmark Email's free plan holds 500 contacts and 2,500 emails a month, double Mailchimp's free contacts, and every plan gets the same features (Benchmark pricing page). Sonary's review notes manual segmentation and a weaker deliverability score. Constant Contact has no free plan, but it has phone and chat support and a 30-day US trial. That is why nonprofits and local event businesses stay with it.

GetResponse and Klaviyo: when is Mailchimp too basic?

GetResponse is for businesses that sell through funnels - webinars, landing pages and automation on every paid plan, with unlimited sends. Klaviyo is for online stores: abandoned-cart and browse flows tied to Shopify or WooCommerce order data. Its free plan covers 250 profiles and 500 emails a month. Neither is the cheap option. They replace Mailchimp when you need more, not less.

HubSpot: when you have outgrown email

Pick HubSpot when email is one piece of a sales process. The free tools include 2,000 sends a month with HubSpot branding, and contacts, deals and emails sit in one CRM. Sonary's review puts it best: it is "most powerful when marketing, sales, and support all live in the same database". The HubSpot vs Mailchimp comparison covers the trade-off.

How Mailchimp bills you for contacts you cannot email

Three rules in Mailchimp's own help center explain most surprise bills:

• Unsubscribed contacts count. Subscribed, non-subscribed, and unsubscribed contacts all count toward your contact limit.
• Duplicates count twice. Billing is based on the total across all your audiences, so the same email address in two audiences is billed as two contacts.
• You pay for the peak. Your bill reflects the highest contact total during the billing period, even if you clean the list later, and going over the limit adds contact-block charges instead of stopping your sends.

Only archived and cleaned contacts are left out. A nonprofit operations manager wrote in a March 2026 review that Mailchimp "charges double or more for contacts if the same email address is added to more than one list". The free plan tightened too: since 17 February 2026, it allows 250 contacts, 500 sends a month, and 250 a day, with no automation flows.

Mailchimp competitors compared: who each one fits

Best Mailchimp alternatives for nonprofits, stores and B2B teams

1. A nonprofit with 4,000 contacts, about 40% old or unsubscribed, one newsletter a month - Brevo. At Mailchimp all 4,000 count. Brevo stores them free and prices by sends. The free plan's 300-a-day cap means a real monthly blast needs the Starter plan. Runner-up: Constant Contact, which does not bill unsubscribes and gives nonprofits 30% off on prepay.

2. A Shopify store with about 3,000 buyers and an abandoned-cart flow - Klaviyo. Its importer keeps your suppressions and 90 days of engagement data, and it is built around ecommerce flows. Budget time to rebuild flows, forms and templates.

3. A B2B firm with 8,000 CRM records, of which only 1,000 get email - HubSpot Starter. 1,000 marketing contacts are included and the rest are stored free. At Mailchimp all 8,000 would count unless archived.

How do you leave Mailchimp without hurting deliverability?

1. Export each audience (Owner or Admin only). You get a zip with separate files for subscribed, unsubscribed, non-subscribed and cleaned contacts. Export tags and groups as segments. Exports stay available for 30 days.
2. Import the unsubscribed and cleaned files into the new tool's suppression list. Brevo's connector skips them and Constant Contact's cannot move unsubscribes, so do it by hand.
3. Cut the bill while you overlap: archive contacts instead of deleting them. Archived contacts do not count toward billing and can be restored. Archive before the billing cycle starts, because you pay for the peak.
4. Save templates as HTML and rebuild automations and forms.
5. Authenticate your domain at the new sender. Add its DKIM records next to Mailchimp's and remove Mailchimp's only after your final send.
6. Start sending to your most engaged segments first.
7. Move Shopify and form integrations off Mailchimp, then downgrade.

Questions to ask before you sign

1. Do unsubscribed, bounced or duplicate contacts count toward my bill? Show me where it says so.
2. Is billing based on peak contacts, current contacts or sends, and what happens when I go over?
3. Which plan lets me activate automations, and how many workflows does it allow?
4. Does your Mailchimp importer carry tags, unsubscribes and consent dates?
5. Is migration done for me, and does it cover DKIM and DMARC?
6. Is there a free plan or only a trial, and are there daily send caps?
7. Are onboarding fees required, and can I cancel online?

See Also:

• best email marketing software
• best free email marketing software
• best marketing automation software
• HubSpot vs Mailchimp
• Klaviyo alternatives